[PATCH v3 3/7] mbmmodem: add gps atom

--- Makefile.am | 3 +- drivers/mbmmodem/gps.c | 247 +++++++++++++++++++++++++++++++++++++++++++ drivers/mbmmodem/mbmmodem.c | 2 + drivers/mbmmodem/mbmmodem.h | 3 + 4 files changed, 254 insertions(+), 1 deletions(-) create mode 100644 drivers/mbmmodem/gps.c diff --git a/Makefile.am b/Makefile.am index de70976..4c00f16 100644 --- a/Makefile.am +++ b/Makefile.am @@ -207,7 +207,8 @@ builtin_sources += drivers/atmodem/atutil.h \ drivers/mbmmodem/mbmmodem.h \ drivers/mbmmodem/mbmmodem.c \ drivers/mbmmodem/gprs-context.c \ - drivers/mbmmodem/stk.c + drivers/mbmmodem/stk.c \ + drivers/mbmmodem/gps.c builtin_modules += hsomodem builtin_sources += drivers/atmodem/atutil.h \ diff --git a/drivers/mbmmodem/gps.c b/drivers/mbmmodem/gps.c new file mode 100644 index 0000000..aa7b7bb --- /dev/null +++ b/drivers/mbmmodem/gps.c @@ -0,0 +1,247 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2010 Intel Corporation. All rights reserved. + * Copyright (C) 2010 ProFUSION embedded systems. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#define _GNU_SOURCE +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <unistd.h> + +#include <glib.h> + +#include <ofono/log.h> +#include <ofono/modem.h> +#include <ofono/gps.h> + +#include "gatchat.h" +#include "gatresult.h" +#include "gattty.h" + +#include "mbmmodem.h" + +static const char *none_prefix[] = { NULL }; +static const char *e2gpsctl_prefix[] = { "*E2GPSCTL:", NULL }; + +struct gps_data { + GAtChat *chat; +}; + +struct e2gpsnpd_data { + GIOChannel *channel; + GAtChat *chat; +}; + +static void mbm_e2gpsctl_disable_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_gps_disable_cb_t cb = cbd->cb; + struct ofono_error error; + + decode_at_error(&error, g_at_result_final_response(result)); + cb(&error, cbd->data); +} + +static void mbm_gps_disable(struct ofono_gps *g, + ofono_gps_disable_cb_t cb, + void *data) +{ + struct gps_data *gd = ofono_gps_get_data(g); + struct cb_data *cbd = cb_data_new(cb, data); + int fd = ofono_gps_get_fd(g); + + /* close the Gps FileDescriptor */ + close(fd); + + if (g_at_chat_send(gd->chat, "AT*E2GPSCTL=0,5,1", none_prefix, + mbm_e2gpsctl_disable_cb, cbd, g_free) > 0) + return; + + /* error */ + CALLBACK_WITH_FAILURE(cb, data); + g_free(cbd); +} + +static void mbm_gps_send_e2gpsnpd_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct e2gpsnpd_data *e2d = user_data; + + g_io_channel_unref(e2d->channel); + g_at_chat_unref(e2d->chat); +} + +static void mbm_gps_send_e2gpsnpd(const char *gps_dev, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_gps_enable_cb_t cb = cbd->cb; + GAtSyntax *syntax; + struct e2gpsnpd_data *e2d; + int fd; + + + e2d = g_try_new0(struct e2gpsnpd_data, 1); + if (e2d == NULL) + goto error; + + e2d->channel = g_at_tty_open(gps_dev, NULL); + if (e2d->channel == NULL) + goto error; + + syntax = g_at_syntax_new_gsm_permissive(); + e2d->chat = g_at_chat_new(e2d->channel, syntax); + g_at_syntax_unref(syntax); + + if (e2d->chat == NULL) + goto error; + + if (g_at_chat_send(e2d->chat, "AT*E2GPSNPD", none_prefix, + mbm_gps_send_e2gpsnpd_cb, e2d, g_free) > 0) { + fd = g_io_channel_unix_get_fd(e2d->channel); + CALLBACK_WITH_SUCCESS(cb, fd, cbd->data); + return; + } + +error: + CALLBACK_WITH_FAILURE(cb, -1, cbd->data); + + if (e2d->chat) + g_at_chat_unref(e2d->chat); + + if (e2d->channel) + g_io_channel_unref(e2d->channel); + + if (e2d) + g_free(e2d); +} + +static void mbm_e2gpsctl_enable_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct cb_data *cbd = user_data; + struct ofono_gps *gps = cbd->user; + ofono_gps_enable_cb_t cb = cbd->cb; + struct ofono_modem *modem; + const char *gps_dev; + + if (!ok) { + struct ofono_error error; + + decode_at_error(&error, g_at_result_final_response(result)); + cb(&error, -1, cbd->data); + return; + } + + modem = ofono_gps_get_modem(gps); + gps_dev = ofono_modem_get_string(modem, "GPSDevice"); + + /* NMEA stream is sent to gps_dev */ + mbm_gps_send_e2gpsnpd(gps_dev, user_data); +} + +static void mbm_gps_enable(struct ofono_gps *g, + ofono_gps_enable_cb_t cb, + void *data) +{ + struct gps_data *gd = ofono_gps_get_data(g); + struct cb_data *cbd = cb_data_new(cb, data); + + if (cbd == NULL) + goto error; + + cbd->user = g; + + if (g_at_chat_send(gd->chat, "AT*E2GPSCTL=1,5,1", none_prefix, + mbm_e2gpsctl_enable_cb, cbd, g_free) > 0) + return; + +error: + CALLBACK_WITH_FAILURE(cb, -1, data); + g_free(cbd); +} + +static void mbm_gps_support_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct ofono_gps *gps = user_data; + + if (!ok) { + ofono_gps_remove(gps); + return; + } + + ofono_gps_register(gps); +} + +static int mbm_gps_probe(struct ofono_gps *g, + unsigned int vendor, void *data) +{ + GAtChat *chat = data; + struct gps_data *gd; + + gd = g_try_new0(struct gps_data, 1); + if (gd == NULL) + return -ENOMEM; + + gd->chat = g_at_chat_clone(chat); + + ofono_gps_set_data(g, gd); + + g_at_chat_send(gd->chat, "AT*E2GPSCTL=?", e2gpsctl_prefix, + mbm_gps_support_cb, g, NULL); + + return 0; +} + +static void mbm_gps_remove(struct ofono_gps *g) +{ + struct gps_data *gd = ofono_gps_get_data(g); + + ofono_gps_set_data(g, NULL); + + g_at_chat_unref(gd->chat); + g_free(gd); +} + +static struct ofono_gps_driver driver = { + .name = "mbmmodem", + .type = OFONO_GPS_DEVICE_TYPE_NMEA, + .probe = mbm_gps_probe, + .remove = mbm_gps_remove, + .enable = mbm_gps_enable, + .disable = mbm_gps_disable, +}; + +void mbm_gps_init() +{ + ofono_gps_driver_register(&driver); +} + +void mbm_gps_exit() +{ + ofono_gps_driver_unregister(&driver); +} diff --git a/drivers/mbmmodem/mbmmodem.c b/drivers/mbmmodem/mbmmodem.c index 03b61b3..ea56cd4 100644 --- a/drivers/mbmmodem/mbmmodem.c +++ b/drivers/mbmmodem/mbmmodem.c @@ -36,12 +36,14 @@ static int mbmmodem_init(void) { mbm_gprs_context_init(); mbm_stk_init(); + mbm_gps_init(); return 0; } static void mbmmodem_exit(void) { + mbm_gps_exit(); mbm_stk_exit(); mbm_gprs_context_exit(); } diff --git a/drivers/mbmmodem/mbmmodem.h b/drivers/mbmmodem/mbmmodem.h index 4c6f263..0393fcb 100644 --- a/drivers/mbmmodem/mbmmodem.h +++ b/drivers/mbmmodem/mbmmodem.h @@ -26,3 +26,6 @@ extern void mbm_gprs_context_exit(void); extern void mbm_stk_init(void); extern void mbm_stk_exit(void); + +extern void mbm_gps_init(); +extern void mbm_gps_exit(); -- 1.7.2.3